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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC2970CUFD датащи(PDF) 1 Page - Linear Technology |
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LTC2970CUFD датащи(HTML) 1 Page - Linear Technology |
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1 / 36 page  LTC2970/LTC2970-1 1 29701fc Dual I2C Power Supply Monitor and Margining Controller The LTC®2970 is a dual power supply monitor and margining controller with an SMBus compatible I2C bus interface. A low-drift, on-chip reference and 14-bit ΔΣ A/D converter allow precise measurements of supply voltages, load currents or internal die temperature. Fault manage- ment allows ⎯A⎯L⎯E⎯R⎯T to be asserted for configurable over and under voltage fault conditions. Two voltage buffered, 8-bit IDACs allow highly accurate programming of DC/DC converter output voltages. The IDACs can be configured to automatically servo the power supplies to the desired voltages using the ADC. The LTC2970-1 adds a tracking feature that can be used to turn multiple power supplies on or off in a controlled manner. The bus address is set to 1 of 9 possible combinations by pin strapping the ASEL0 and ASEL1 pins. The LTC2970/ LTC2970-1 are packaged in the 24-lead, 4mm × 5mm QFN package. ■ Dual Power Supply Voltage Servo ■ Monitoring Supply Voltage and Current ■ Programmable Power Supplies ■ Programmable Reference ■ Less Than ±0.5% Total Unadjusted Error 14-Bit ΔΣ ADC with On-Chip Reference ■ Dual, 8-Bit IDACs with 1x Voltage Buffers ■ Linear, Voltage Servo Adjusts Supply Voltages by Ramping IDAC Outputs Up/Down ■ I2C™ Bus Interface (SMBus Compatible) ■ Extensive, User Configurable Fault Monitoring ■ On-Chip Temperature Sensor ■ Available in 24-Lead 4mm × 5mm QFN Package Dual Power Supply Monitor and Controller (One of Two Channels Shown) APPLICATIO S FEATURES DESCRIPTIO TYPICAL APPLICATIO , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 8V TO 15V OUT FB 0.1 μF 0.1 μF 0.1 μF I– I+ I2C BUS SMBUS COMPATIBLE LOAD DC/DC CONVERTER SGND 29701 TA01 RUN/SS IN VIN 1/2 LTC2970 ALERT SCL SDA GPIO_0 REF 12VIN GND GND ASEL0 ASEL1 VDD GPIO_CFG VIN0_BM VIN0_BP VIN0_AP VOUT0 IOUT0 VIN0_AM () TEMPERATURE ( °C) –50 –0.25 0.25 25 75 29701 TA01b –0.50 –25 0 50 0 0.50 100 ADC VIN = 5V 15 PARTS MOUNTED ON PCB ADC Total Unadjusted Error vs Temperature |
Аналогичный номер детали - LTC2970CUFD |
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Аналогичное описание - LTC2970CUFD |
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